Compressor heat dissipation structure with oil receiving pool
By setting oil storage parts on the top of the piston table body of the compressor cylinder head to collect and perform heat exchange design, the problem of engine oil not sufficiently exchanging heat with the cylinder in the prior art is solved, and more efficient heat exchange and longer component life are achieved.
Patent Information
- Application Number
- CN202421002334.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-05-10
AI Technical Summary
In existing fully enclosed compressors, the oil cannot fully exchange heat with the cylinder after the crankshaft rotates, resulting in high cylinder temperature, increased power consumption and reduced component life.
A compressor heat dissipation structure with an oil connection tank is designed. By setting oil storage parts on the top of the piston table of the cylinder head, the engine oil pumped by the crankshaft is collected, and heat exchanged with the cylinder head through the oil connection tank of the oil storage parts is carried out. The high-temperature oil is discharged through the overflow port to take away heat.
It improves the heat exchange efficiency between engine oil and cylinder head, reduces the temperature of cylinder head, avoids the increase in power consumption and component life caused by heat concentration, and ensures the reliability and service life of components.
Smart Images
Figure CN222596250U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of compressor heat dissipation, and in particular relates to a compressor heat dissipation structure with an oil receiving pool. Background Art
[0002] In a fully enclosed compressor, it mainly includes a shell, a pump body and engine oil, among which the cylinder seat of the pump body is the main supporting component for connecting the motor, valve group and piston. Because the gas compressor, motor generate heat and mechanical friction generate a lot of heat, different temperature distributions are generated inside the compressor. The upper compressor cylinder and cylinder end face generate higher temperatures, while the oil temperature in the lower part is lower. The oil in the cylinder and upper parts has a temperature difference of nearly 30°C from the oil in the lower part; the higher the temperature in the cylinder, the greater the power consumption generated during the compression process. In a reciprocating crankshaft connecting rod piston compressor, the oil in the lower oil pool is generally thrown to the cylinder through the high-speed rotation of the crankshaft inside, which has a cooling effect on the cylinder.
[0003] The problem with the prior art is that the engine oil thrown to the cylinder by the rotation of the crankshaft quickly flows along the surface of the component to the bottom of the casing under the action of gravity, and does not fully exchange heat with the cylinder and the outer surface of the cylinder, which affects the heat exchange effect between the component and the engine oil, causing heat concentration in the compressor pump body, increased power consumption, and excessive heat also reducing the service life of the pump body components. Summary of the invention
[0004] The utility model aims to solve the problems existing in the prior art and provide a compressor heat dissipation structure with an oil receiving pool, which has the advantages of good cooling effect, simple structure and high reliability.
[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a compressor heat dissipation structure with an oil collecting pool, including a cylinder seat, the cylinder seat includes a cylinder head and a motor mounting frame, the cylinder head is located above the front side of the motor mounting frame, the cylinder head is provided with a piston hole for connecting the piston, the cylinder head includes a cylinder surface connecting portion and a piston platform portion, a pin groove is provided in the middle of the piston platform portion, an oil storage part is provided on the top of the piston platform portion, the oil storage part is formed with an oil collecting pool with an opening facing upward, the bottom of the oil storage part is fitted with the piston platform portion, an oil leakage groove corresponding to the pin groove is provided on the bottom surface of the oil storage part, and a rear overflow port is provided on the upper rear side of the oil storage part.
[0006] In the above scheme, the cylinder head of the cylinder seat is located on the upper side of the motor mounting frame, the piston hole of the cylinder head is used to connect the piston and provide a gas compression space, the cylinder surface connection part is used to connect the valve group and the cylinder head, the piston platform body is used to locate the moving direction of the piston, and the piston platform body is provided with a pin groove for piston pin connection. An oil storage part is arranged on the top of the piston platform body, and the oil pumped by the crankshaft is collected through the oil receiving pool of the oil storage part. At the same time, the bottom of the oil storage part is fitted with the piston platform body to facilitate the heat transfer of the cylinder head to the oil in the oil receiving pool. The high-temperature oil in the oil receiving pool absorbs heat and its density decreases and floats up. After the liquid level exceeds the height, the high-temperature oil is preferentially discharged from the rear overflow port to take away the heat. The discharged high-temperature oil flows downwardly back to the lower temperature oil pool at the bottom of the compressor, thereby ensuring that there is always low-temperature oil in the oil receiving pool for heat exchange with the cylinder head. The oil leakage groove on the bottom of the oil storage part corresponds to the pin groove, which is convenient for the installation of the pin shaft and the oil to lubricate the piston and connecting rod parts.
[0007] Furthermore, the front side surface of the oil storage component is in contact with the rear side surface of the cylinder surface connection portion, and a front overflow port is provided at the upper front side of the oil storage component.
[0008] The contact heat exchange area between the oil storage component and the cylinder head is increased by fitting the front side of the oil storage component with the rear side of the cylinder surface connection part, thereby improving the heat exchange efficiency. The oil discharged from the front overflow port flows down to the cylinder surface connection part to exchange heat and cool it.
[0009] Furthermore, a lower groove body is arranged at the center of the motor mounting frame, an oil return groove is opened at the bottom of the lower groove body, a crankshaft is rotatably arranged at the center of the lower groove body, and the rear overflow port is located directly above the lower groove body.
[0010] The lower groove body of the motor mounting frame can be used to collect the oil on the top surface, allowing the oil to fall from the oil return groove to the oil pool at the bottom. The oil overflowing from the rear overflow port can fall to the lowered crankshaft, connecting rod, and crankshaft hole connection nodes to lubricate the structure at the node and reduce wear.
[0011] Furthermore, a plurality of heat dissipation ribs are arranged on the bottom surface of the oil receiving pool of the oil storage component, and the top surface height of the heat dissipation ribs is not lower than the bottom surface height of the rear overflow port.
[0012] The heat conduction efficiency between the oil storage component and the engine oil is improved by arranging heat dissipation ribs on the bottom surface of the oil receiving pool of the oil storage component. The height of the top surface of the heat dissipation ribs is set to ensure the contact area with the oil, thereby improving the cooling efficiency of the cylinder head.
[0013] Furthermore, a transverse oil guide groove is provided on the cylinder surface connection portion, and the transverse oil guide groove is connected to a docking oil groove, and the position of the docking oil groove corresponds to the front overflow port.
[0014] The bottom heights of the transverse oil guide groove and the docking oil groove are lower than the bottom height of the front overflow port to facilitate the flow of oil. The docking oil groove and the transverse oil guide groove are used to increase the distance that the oil flowing out of the oil storage component flows along the cylinder surface connection, thereby improving the heat exchange effect.
[0015] Furthermore, an internal lower oil hole is provided on the cylinder surface connection portion, the top of the internal lower oil hole is connected to the transverse oil guide groove, and the bottom end of the internal lower oil hole is provided with an oil return opening located on the bottom surface of the cylinder surface connection portion.
[0016] The internal oil lower hole is opened to guide the oil in the transverse oil guide groove downward, so that the oil can fully exchange heat with the inside of the cylinder head and then fall back into the oil pool from the oil return opening.
[0017] Furthermore, a threaded hole is provided on the piston platform body, and a screw for fixing the oil storage component is screwed into the threaded hole.
[0018] The oil storage part is fixed by connecting screws through threaded holes provided on the piston platform body, and the structure is stable.
[0019] Furthermore, the oil storage component is bilaterally symmetrically arranged, and the oil storage component and the piston platform body are an integrated structure.
[0020] The oil storage part is symmetrical on both sides to ensure uniform heat on both sides of the cylinder head. The oil storage part and the piston platform are set as an integrated structure with a simple structure, which is convenient for heat exchange between the cylinder head part and the oil in the oil receiving pool.
[0021] Compared with the prior art, the beneficial effects of the utility model are:
[0022] 1. An oil storage part is arranged on the top of the piston platform to store the oil pumped by the crankshaft, so that the oil has sufficient time to exchange heat with the cylinder head through the oil storage part, thereby ensuring that the temperature of the cylinder head is reduced. The high-temperature oil will rise in the oil receiving pool, be discharged from the overflow port first, and return to the lower temperature oil pool for cooling, so as to be used for the next crankshaft pumping. The cooling effect is good, avoiding the problem of increased power consumption and reduced component life caused by the concentration of heat in the compressor cylinder seat;
[0023] 2. By setting up the oil storage part, the structural impact on the original pump body is reduced, the structure is simple and easy to use;
[0024] 3. The influence of high temperature on the life of pump components is reduced by setting oil storage parts. At the same time, the oil is guided to the crankshaft and connecting mechanism in the middle of the motor mounting frame through the rear overflow port for lubrication, thereby ensuring the service life of components and improving the operating reliability of components. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1This is a structural stereogram of a compressor heat dissipation structure with an oil collection pool according to Embodiment 1 of the utility model;
[0026] Figure 2 This is a structural explosion diagram of a compressor heat dissipation structure with an oil receiving pool according to Example 1 of the utility model;
[0027] Figure 3 This is a top view of a compressor heat dissipation structure with an oil collection pool according to Embodiment 2 of the utility model;
[0028] Figure 4 This is a structural cross-sectional view of the internal lower oil hole in Example 2 of the utility model;
[0029] In the figure: 1. Piston hole; 2. Motor mounting bracket; 3. Cylinder surface connection part; 4. Piston platform body; 5. Pin groove; 6. Oil storage part; 7. Oil collecting pool; 8. Oil leakage groove; 9. Rear overflow port; 10. Front overflow port; 11. Lower groove body; 12. Oil return groove; 13. Crankshaft; 14. Heat dissipation rib; 15. Transverse oil guide groove; 16. Docking oil groove; 17. Internal lower oil hole; 18. Oil return opening; 19. Screw; 20. Threaded hole. DETAILED DESCRIPTION
[0030] The technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative labor are within the scope of protection of the utility model. In the description of the utility model, it should be noted that the terms front, back, left, right, etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships in which the utility model product is usually placed when used. They are only for the convenience of describing the utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.
[0031] Example 1
[0032] like Figure 1-2As shown, a compressor heat dissipation structure with an oil receiving pool 7 includes a cylinder seat, the cylinder seat includes a cylinder head and a motor mounting frame 2, the cylinder head is located above the front side of the motor mounting frame 2, the cylinder head is provided with a piston hole 1 for connecting the piston, the cylinder head includes a cylinder surface connecting portion 3 and a piston platform portion 4, a pin groove 5 is provided in the middle of the piston platform portion 4, an oil storage component 6 is provided on the top of the piston platform portion 4, the oil storage component 6 is formed with an oil receiving pool 7 with an opening facing upward, the bottom of the oil storage component 6 is fitted with the piston platform portion 4, an oil leakage groove 8 corresponding to the pin groove 5 is provided on the bottom surface of the oil storage component 6, and a rear overflow port 9 is provided on the upper rear side of the oil storage component 6.
[0033] In the above scheme, the cylinder head of the cylinder seat is located on the upper side of the motor mounting frame 2, the piston hole 1 of the cylinder head is used to connect the piston and provide a gas compression space, the cylinder surface connection part 3 is used to connect the valve group and the cylinder head, the piston platform body 4 is used to locate the moving direction of the piston, and the piston platform body 4 is provided with a pin groove 5 for the piston pin connection. By arranging an oil storage part 6 on the top of the piston platform body 4, the oil pumped by the crankshaft 13 is collected through the oil receiving pool 7 of the oil storage part 6, and the bottom of the oil storage part 6 is in contact with the piston platform body 4. It is convenient for the heat of the cylinder head to be transferred to the oil in the oil receiving pool 7. The high-temperature oil in the oil receiving pool 7 absorbs heat and its density decreases, so it floats up. After the liquid level exceeds the height, the high-temperature oil is preferentially discharged from the rear overflow port 9 to take away the heat. The discharged high-temperature oil flows downwardly back to the oil pool with a lower temperature at the bottom of the compressor, thereby ensuring that there is always low-temperature oil in the oil receiving pool 7 to exchange heat with the cylinder head. The oil leakage groove 8 on the bottom of the oil storage part 6 corresponds to the pin groove 5, which is convenient for the installation of the pin shaft and the lubrication of the piston and connecting rod by the oil.
[0034] Since the engine oil rises when heated and sinks when cooled, there is a natural convection temperature difference between the engine oil in the upper and lower parts of the oil receiving pool 7. The oil storage member 6 is a heat-conducting metal, such as an iron or copper structure. The bottom surface of the oil storage member 6 is provided with an arc-shaped groove body corresponding to the top of the piston platform body 4. The height of the rear side surface of the oil storage member 6 is lower than the height of the front side surface and the left and right side surfaces to form a rear overflow port 9.
[0035] Furthermore, the front side surface of the oil storage component 6 is in contact with the rear side surface of the cylinder surface connection portion 3 , and a front overflow port 10 is provided at the upper front portion of the oil storage component 6 .
[0036] The contact heat exchange area between the oil storage component 6 and the cylinder head is increased by fitting the front side of the oil storage component 6 with the rear side of the cylinder surface connection part 3, thereby improving the heat exchange efficiency. The oil discharged from the front overflow port 10 flows down to the cylinder surface connection part 3 to exchange heat and cool it.
[0037] The bottom height of the front overflow port 10 is consistent with the bottom height of the rear overflow port 9 .
[0038] Furthermore, a lower groove body 11 is provided at the center of the motor mounting frame 2 , an oil return groove 12 is provided at the bottom of the lower groove body 11 , a crankshaft 13 is rotatably provided at the center of the lower groove body 11 , and the rear overflow port 9 is located directly above the lower groove body 11 .
[0039] The lower groove body 11 of the motor mounting frame can be used to collect the oil on the top surface, so that the oil falls from the oil return groove 12 to the oil pool at the bottom. The oil overflowing from the rear overflow port 9 can fall to the lowered crankshaft 13, connecting rod, and crankshaft 13 hole connection node to lubricate the node structure and reduce wear.
[0040] Furthermore, a plurality of heat dissipation ribs 14 are provided on the bottom surface of the oil receiving pool 7 of the oil storage member 6 , and the top surface height of the heat dissipation ribs 14 is not lower than the bottom surface height of the rear overflow port 9 .
[0041] The heat conduction efficiency between the oil storage component 6 and the engine oil is improved by arranging heat dissipation ribs 14 on the bottom surface of the oil receiving pool 7 of the oil storage component 6. The top surface height of the heat dissipation ribs 14 is set to ensure the contact area with the oil, thereby improving the cooling efficiency of the cylinder head.
[0042] The bottom surfaces of the front overflow port 10 and the rear overflow port 9 are at the same height, and the heat dissipation ribs 14 include a vertically arranged plate.
[0043] Furthermore, a threaded hole 20 is formed on the piston platform body 4 , and a screw 19 for fixing the oil storage component 6 is screwed into the threaded hole 20 .
[0044] The oil storage component 6 is fixed by opening a threaded hole 20 in the piston platform body 4 and connecting the screw 19, so that the structure is stable.
[0045] The oil storage member 6 is provided with a connecting hole for the screw 19 to pass through.
[0046] Example 2
[0047] like Figure 3-4 As shown, a compressor heat dissipation structure with an oil collection pool in this embodiment is further modified as follows on the basis of Embodiment 1:
[0048] Furthermore, a transverse oil guide groove 15 is formed on the cylinder surface connection portion 3 , and the transverse oil guide groove 15 is connected to a docking oil groove 16 , and the position of the docking oil groove 16 corresponds to the front overflow port 10 .
[0049] The bottom heights of the transverse oil guide groove 15 and the docking oil groove 16 are lower than the bottom height of the front overflow port 10 to facilitate the flow of oil. The docking oil groove 16 and the transverse oil guide groove 15 are used to increase the distance that the oil flowing out of the oil storage part 6 flows along the cylinder surface connection part 3, thereby improving the heat exchange effect.
[0050] Both ends of the transverse oil guide groove 15 can penetrate the cylinder surface connection part 3 or be provided with internal oil holes 17 for oil flow.
[0051] Furthermore, an internal lower oil hole 17 is opened on the cylinder surface connection part 3 , the top of the internal lower oil hole 17 is connected to the transverse oil guide groove 15 , and the bottom end of the internal lower oil hole 17 is provided with an oil return opening 18 located on the bottom surface of the cylinder surface connection part 3 .
[0052] The internal oil lower hole 17 is provided to guide the oil in the transverse oil guide groove 15 downward, so that the oil fully exchanges heat with the interior of the cylinder head and then falls back into the oil pool from the oil return opening 18 .
[0053] Furthermore, the oil storage component 6 is a bilaterally symmetrical structure, and the oil storage component 6 and the piston platform body 4 are an integrated structure.
[0054] The oil storage member 6 is symmetrical to ensure uniform heat on both sides of the cylinder head. The oil storage member 6 and the piston platform are set as an integrated structure with a simple structure, which is convenient for heat exchange between the cylinder head part and the oil in the oil receiving pool 7.
[0055] The oil storage member 6 and the piston platform body 4 can be produced in one piece or welded into one piece.
[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A compressor heat dissipation structure with an oil collection pool, characterized in that: It includes a cylinder seat, which includes a cylinder head and a motor mounting frame. The cylinder head is located above the front side of the motor mounting frame. The cylinder head is provided with a piston hole for connecting the piston. The cylinder head includes a cylinder surface connecting portion and a piston platform portion. A pin groove is provided in the middle of the piston platform portion. An oil storage component is provided on the top of the piston platform portion. The oil storage component forms an oil receiving pool with an opening facing upward. The bottom of the oil storage component is fitted with the piston platform portion. An oil leakage groove corresponding to the pin groove is provided on the bottom surface of the oil storage component. A rear overflow port is provided on the upper rear side of the oil storage component.
2. The compressor heat dissipation structure with an oil collection pool according to claim 1, characterized in that: The front side surface of the oil storage component is in contact with the rear side surface of the cylinder surface connection portion, and a front overflow port is provided at the upper front side of the oil storage component.
3. The compressor heat dissipation structure with an oil collection pool according to claim 1, characterized in that: A lower groove body is arranged at the center of the motor mounting frame, an oil return groove is opened at the bottom of the lower groove body, a crankshaft is rotatably arranged at the center of the lower groove body, and the rear overflow port is located directly above the lower groove body.
4. The compressor heat dissipation structure with an oil collection pool according to claim 1, characterized in that: A plurality of heat dissipation ribs are arranged on the bottom surface of the oil receiving pool of the oil storage member, and the top surface height of the heat dissipation ribs is not lower than the bottom surface height of the rear overflow port.
5. The compressor heat dissipation structure with an oil collection pool according to claim 2, characterized in that: A transverse oil guide groove is provided on the cylinder surface connection portion, and the transverse oil guide groove is connected to a docking oil groove, and the position of the docking oil groove corresponds to the front overflow port.
6. The compressor heat dissipation structure with an oil collection tank according to claim 5, characterized in that: An internal oil lower hole is provided on the cylinder surface connection part, the top of the internal oil lower hole is connected to the transverse oil guide groove, and the bottom end of the internal oil lower hole is provided with an oil return opening located on the bottom surface of the cylinder surface connection part.
7. The compressor heat dissipation structure with an oil collection pool according to claim 1, characterized in that: A threaded hole is provided on the piston platform body, and a screw for fixing the oil storage component is screwed into the threaded hole.
8. The compressor heat dissipation structure with an oil collection pool according to claim 1, characterized in that: The oil storage component is arranged symmetrically on both sides, and the oil storage component and the piston platform body are an integrated structure.